Core of electromagnets are made of ferromagnetic materials which haveA. low permeability and low retentivityB. high permeability and high retentivityC. high permeability and low retentivityD. low permeability and high retentivity.

Core of electromagnets are made of ferromagnetic materials which haveA

1.	Core of electromagnets are made of ferromagnetic materials which haveA. low permeability and low retentivityB. high permeability and high retentivityC. high permeability and low retentivityD. low permeability and high retentivity.
Answer» Correct Answer - D Core of electromagnets are made of soft iron that is ferromagnetic material with high permeability and low retantivity.

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Core of electromagnets are made of ferromagnetic materials which haveA. low permeability and low retentivityB. high permeability and high retentivityC. high permeability and low retentivityD. low permeability and high retentivity.

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